Car comparison

AUDI A6 Avant (C8) 45 TDI V6vsAUDI A6 Avant (C9) 2.0 TDI

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

AUDI A6 Avant (C8)

45 TDI V6

231 hp2967 ccDieselAWDAutomaticTurbochargedWagon / estate2018-2020
VS

AUDI A6 Avant (C9)

2.0 TDI

204 hp1968 ccDieselAWDAutomaticTurbochargedWagon / estate2025-present

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

AUDI A6 Avant (C8) 45 TDI V6

  • Quickest 0-100 km/h
    6.5 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    231 hp
    172 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lightest
    1,890 kg
    4,167 lb
  • Best power-to-weight
    122 hp/t
    91 kW/t
    8.2 kg/hp
  • Lowest combined fuel consumption
    5.9 L/100 km
    39.9 mpg US
    47.9 mpg UK
  • Best estimated range
    1,068 km
    663 mi
  • Largest trunk
    565 L
  • Best overall score
    69/100
  • Best performance score
    60/100
  • Best economy score
    91/100
  • Best practicality score
    87/100

Specification comparison

Specification comparison
ModelAUDIA6 Avant (C8)45 TDI V6AUDIA6 Avant (C9)2.0 TDI
Power
231hp172kW
204hp152kW
Torque
500Nm369lb-ft
400Nm295lb-ft
Curb weight
1,890kg4,167lb
2,000kg4,409lb
Gross weight
2,560kg5,644lb
2,625kg5,787lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
238 km/h
148 mph
To 99% top speed
75.8s99% target: 257 km/h / 160 mph
Calculated
73.3s99% target: 236 km/h / 146 mph
Calculated
0-100 km/h
6.5s
7.0s
0-200 km/h
21.7s
Calculated
26.6s
Calculated
0-60 mph
6.2s
Calculated
6.7s
Calculated
Fuel consumption
5.9L/100 km39.9mpg US47.9mpg UK
5.9L/100 km39.9mpg US47.9mpg UK
Fuel consumption city
6.5L/100 km36.2mpg US43.5mpg UK
-
Fuel consumption highway
5.6L/100 km42mpg US50.4mpg UK
-
Quarter mile
14.5s
Calculated
15.0s
Calculated
Power-to-weight
122hp/t91kW/t55hp/1000 lb
Calculated
102hp/t76kW/t46hp/1000 lb
Calculated
Torque-to-weight
265Nm/t177lb-ft/ton
Calculated
200Nm/t134lb-ft/ton
Calculated
Estimated range
1,068km663mi
Calculated
1,017km632mi
Calculated
Displacement
2,967cc181cu in
1,968cc120cu in
Length
4,939mm194in
4,999mm197in
Width
1,886mm74in
1,875mm74in
Height
1,467mm58in
1,472mm58in
Wheelbase
2,924mm115in
2,923mm115in
Front track
1,630mm64in
1,631mm64in
Rear track
1,617mm64in
1,616mm64in
Trunk volume
565L
466L
Max trunk volume-
1,497L
Doors
5
5
Seats
5
5
Fuel tank
63L
60L
CO2 emissions
155g/km
-

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

AUDI A6 Avant (C8) 45 TDI V6AUDI A6 Avant (C9) 2.0 TDIPowerTorque
  • AUDI A6 Avant (C8) 45 TDI V6: Power / Torque
  • AUDI A6 Avant (C9) 2.0 TDI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 Avant (C8)45 TDI V63,250-4,750 rpm1,750-3,250 rpm5,000 rpm
AUDIA6 Avant (C9)2.0 TDI3,800-4,200 rpm1,750-3,250 rpm4,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 Avant (C8)45 TDI V6AUDIA6 Avant (C9)2.0 TDI
Acceleration checkpoints
0-60 mph
0-97 km/h
6.2 s
6.7 s
0-100 km/h
0-62 mph
6.5 s
7.0 s
0-200 km/h
0-124 mph
21.7 s
26.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
238 km/h
148 mph
Drag race simulation
60 ft
18 m
2.5 s
2.6 s
330 ft
101 m
6.5 s
6.6 s
1/8 mile
201 m
9.6 s
9.9 s
1000 ft
305 m
12.3 s
12.6 s
1/4 mile
402 m
14.5 s
15.0 s
Trap speed
1/4 mile
402 m
165 km/h
103 mph
158 km/h
98 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
AUDIA6 Avant (C8)45 TDI V6
231 hp
172 kW
AUDIA6 Avant (C9)2.0 TDI
204 hp
152 kW

AUDI A6 Avant (C8) 45 TDI V6 has 27 hp more than AUDI A6 Avant (C9) 2.0 TDI.

The biggest power difference is between AUDI A6 Avant (C9) 2.0 TDI and AUDI A6 Avant (C8) 45 TDI V6: 27 hp (20 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
AUDIA6 Avant (C8)45 TDI V6
500 Nm
369 lb-ft
AUDIA6 Avant (C9)2.0 TDI
400 Nm
295 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
AUDIA6 Avant (C8)45 TDI V6
1,890 kg
4,167 lb
AUDIA6 Avant (C9)2.0 TDI
2,000 kg
4,409 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
AUDIA6 Avant (C8)45 TDI V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 Avant (C9)2.0 TDI
238 km/h
148 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
AUDIA6 Avant (C8)45 TDI V66.5 s
AUDIA6 Avant (C9)2.0 TDI7.0 s

The biggest 0-100 km/h difference is between AUDI A6 Avant (C8) 45 TDI V6 and AUDI A6 Avant (C9) 2.0 TDI: 0.5 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
AUDIA6 Avant (C8)45 TDI V6
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
AUDIA6 Avant (C9)2.0 TDI
5.9 L/100 km
39.9 mpg US
47.9 mpg UK

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
AUDIA6 Avant (C8)45 TDI V6
122 hp/t
91 kW/t
8.2 kg/hp
AUDIA6 Avant (C9)2.0 TDI
102 hp/t
76 kW/t
9.8 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
AUDIA6 Avant (C8)45 TDI V6
1,068 km
663 mi
AUDIA6 Avant (C9)2.0 TDI
1,017 km
632 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 Avant (C8)45 TDI V6
231 hp
172 kW
6.5 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 Avant (C9)2.0 TDI
204 hp
152 kW
7.0 s
238 km/h
148 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
AUDIA6 Avant (C8)45 TDI V6
Power
231 hp
172 kW
0-100 km/h6.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,939 mm
194.4 in
Height
1,467 mm
57.8 in
AUDIA6 Avant (C9)2.0 TDI
Power
204 hp
152 kW
0-100 km/h7.0 s
Top speed
238 km/h
148 mph
Doors/seats
5 doors
5 seats
Trunk
466 L
16.5 cu ft
Length
4,999 mm
196.8 in
Height
1,472 mm
58.0 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
AUDIA6 Avant (C8)45 TDI V6
Power
231 hp
172 kW
0-100 km/h6.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
AUDIA6 Avant (C9)2.0 TDI
Power
204 hp
152 kW
0-100 km/h7.0 s
Top speed
238 km/h
148 mph
5.9 L/100 km
39.9 mpg US
47.9 mpg UK

AUDI A6 Avant (C8) 45 TDI V6 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
AUDIA6 Avant (C8)45 TDI V6
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
6.5 s
AUDIA6 Avant (C9)2.0 TDI
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
7.0 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
AUDIA6 Avant (C8)45 TDI V6
122 hp/t
91 kW/t
8.2 kg/hp
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
AUDIA6 Avant (C9)2.0 TDI
102 hp/t
76 kW/t
9.8 kg/hp
5.9 L/100 km
39.9 mpg US
47.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 Avant (C8)45 TDI V6AUDIA6 Avant (C9)2.0 TDI
Power
231 hp
172 kW
204 hp
152 kW
Torque
500 Nm
369 lb-ft
400 Nm
295 lb-ft
Acceleration
6.5 s
7.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
238 km/h
148 mph
Lightness
1,890 kg
4,167 lb
2,000 kg
4,409 lb
Fuel consumption
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,939 mm
194.4 in
Height
1,467 mm
57.8 in
Doors/seats
5 doors
5 seats
Trunk
466 L
16.5 cu ft
Length
4,999 mm
196.8 in
Height
1,472 mm
58.0 in
Range score
1,068 km
663 mi
1,017 km
632 mi
CO2 score
155 g/km
-
Trunk score
565 L
20.0 cu ft
466 L
16.5 cu ft
Power-to-weight score
122 hp/t
91 kW/t
8.2 kg/hp
102 hp/t
76 kW/t
9.8 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleAUDI A6 Avant (C8) 45 TDI V6AUDI A6 Avant (C9) 2.0 TDI
Consumption5.9 L/100 km39.9 mpg US47.9 mpg UK5.9 L/100 km39.9 mpg US47.9 mpg UK
Cost / 100 km10.33 LC100 km10.33 LC100 km
Cost / 100 mi16.62 LC100 mi16.62 LC100 mi
Annual fuel used885 L234 US gal195 UK gal885 L234 US gal195 UK gal
Annual fuel cost1,549 LC/year1,549 LC/year

Head-to-head comparisons

AUDI A6 Avant (C8) 45 TDI V6

  • Has 27 hp more
  • Has 100 Nm more
  • Is 110 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Has 22 km/h (14 mph) higher top speed
  • Has 20 hp/t better power-to-weight
  • Has 51 km (32 mi) more estimated range
  • Has 99 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

AUDI A6 Avant (C9) 2.0 TDI

No measurable advantages in the available data.

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 Avant (C8) 45 TDI V6
AUDI A6 Avant (C9) 2.0 TDI
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